Its all snake oil.....motor honey...muffler bearing remover.....kanooter valve treatment....etc....
Should have Lefet alone.......clean the carb and the fuel system and it won't take 7 minutes to run good.Posted via Mobile Device

Ed, the quality dip type carb cleaner disappeared off the shelf, my best guess, 15 to 20 years ago. I don't even remember the name now, but as I recall it was a very alkaline(lye) solution. It cleaned up varnish and crud in short order but you didn't want to leave a carb with plastic parts in it for an extended period of time. More than likely, EPA regs caused it demise. Have tried a gallon of Berryman's and NAPA's stuff--not impressed. Since then, it's air and the cheapest brake cleaner I can find. Some of the old heads will recall the good stuff.

Ed, the quality dip type carb cleaner disappeared off the shelf, my best guess, 15 to 20 years ago. I don't even remember the name now, but as I recall it was a very alkaline(lye) solution. It cleaned up varnish and crud in short order but you didn't want to leave a carb with plastic parts in it for an extended period of time. More than likely, EPA regs caused it demise. Have tried a gallon of Berryman's and NAPA's stuff--not impressed. Since then, it's air and the cheapest brake cleaner I can find. Some of the old heads will recall the good stuff.

Click to expand...

Hell yeah, the old stuff would take the finish off and diisolve a carb if you left it in too long. only brass floats survived. Rough on your hands too. too many numbnutz dumping down the drain helped eliminate it. Nothing as good since. Even Gumout spray doesn't seem to have the same zip.

Dutch is right...the carb soaking solution they sell anymore are an exercise in futility.
They eat plastic and don't touch the varnish that they are supposed to dissolve.
Brake cleaner is they way to go...it also helps to get a flow chart on the carb to know where and how
The air and fuel move through the carb. Then you can know which passages are open as well as the
Ones that need more cleaning.Posted via Mobile Device

If You Have All The Answers...Except The One You Need...You're Not Trying Hard Enough...
Do The Work

Dutch is right...the carb soaking solution they sell anymore are an exercise in futility.
They eat plastic and don't touch the varnish that they are supposed to dissolve.
Brake cleaner is they way to go...it also helps to get a flow chart on the carb to know where and how
The air and fuel move through the carb. Then you can know which passages are open as well as the
Ones that need more cleaning.Posted via Mobile Device

Click to expand...

Before I sit these carb in this Mechanic in a bottle I am taking out all the diaphrams and the needle. I think some of the carb have passages that nobody can find. I got the perfect candidate for the stuff I cleaned up a BR420 carb a few weeks ago that was leaking out the carb. Used brake cleaner after taking it all apart. Put it together and it was working for a week today I pulled it off and leaking again. I am going into the bath with it. Also got two hand blowers that start real hard and into the bath they go after tearing them down.